Models of terahertz and infrared devices based on graphene/ black-Asp heterostructures

M. Ryzhii, T. Otsuji, V. Ryzhii, V. Leiman, V. Mitin, M. S. Shur

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The gapless energy spectrum of the graphene layers (GLs) enables the interband absorption and emission of photons and plasmons in the terahertz (THz) and infrared (IR) spectral range. The energy of the emerging the black-phosphorus (b-P), black-arsenic (b-As), and the compounds (b-AsxP1-x) varies from 0.15 to 1.7 eV, depending on the number of the atomic sheets and the component relative content. Due to a strong anisotropy of the b-P and b-As, the ratios of the carrier effective masses in different in-plain directions are very large. One of the crucial properties of the GL heterostructures with the b-P, b-As, and b-AsxP1-x barrier layers are associated with the GL Dirac point corresponding to the energy gap in the barriers. Combination of GLs with the b-P, b-As, and b-AsxP1-x layers opens new prospects for the novel THz and IR devices, in particular, GL-based photodetectors, electro-optical modulators, and sources of THz/IR radiation, including the lasers with the GL active region.

Original languageEnglish
Title of host publication31st European Modeling and Simulation Symposium, EMSS 2019
EditorsMichael Affenzeller, Agostino G. Bruzzone, Francesco Longo, Guilherme Pereira
PublisherDime University of Genoa
Pages237-240
Number of pages4
ISBN (Electronic)9788885741263
Publication statusPublished - 2019 Jan 1
Event31st European Modeling and Simulation Symposium, EMSS 2019 - Lisbon, Portugal
Duration: 2019 Sep 182019 Sep 20

Publication series

Name31st European Modeling and Simulation Symposium, EMSS 2019

Conference

Conference31st European Modeling and Simulation Symposium, EMSS 2019
CountryPortugal
CityLisbon
Period19/9/1819/9/20

Keywords

  • Black-arsenic
  • Black-phosphorus
  • Graphene
  • Heterostructure
  • Infrared
  • Terahertz

ASJC Scopus subject areas

  • Safety Research
  • Modelling and Simulation
  • Safety, Risk, Reliability and Quality

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  • Cite this

    Ryzhii, M., Otsuji, T., Ryzhii, V., Leiman, V., Mitin, V., & Shur, M. S. (2019). Models of terahertz and infrared devices based on graphene/ black-Asp heterostructures. In M. Affenzeller, A. G. Bruzzone, F. Longo, & G. Pereira (Eds.), 31st European Modeling and Simulation Symposium, EMSS 2019 (pp. 237-240). (31st European Modeling and Simulation Symposium, EMSS 2019). Dime University of Genoa.